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/* ARM COFF support for BFD.
Copyright (C) 1998-2017 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#define COFFARM 1
#define L_LNNO_SIZE 2
#define INCLUDE_COMDAT_FIELDS_IN_AUXENT
#include "coff/external.h"
/* Bits for f_flags:
F_RELFLG relocation info stripped from file
F_EXEC file is executable (no unresolved external references)
F_LNNO line numbers stripped from file
F_LSYMS local symbols stripped from file
F_INTERWORK file supports switching between ARM and Thumb instruction sets
F_INTERWORK_SET the F_INTERWORK bit is valid
F_APCS_FLOAT code passes float arguments in float registers
F_PIC code is reentrant/position-independent
F_AR32WR file has byte ordering of an AR32WR machine (e.g. vax)
F_APCS_26 file uses 26 bit ARM Procedure Calling Standard
F_APCS_SET the F_APCS_26, F_APCS_FLOAT and F_PIC bits have been initialised
F_SOFT_FLOAT code does not use floating point instructions. */
#define F_RELFLG (0x0001)
#define F_EXEC (0x0002)
#define F_LNNO (0x0004)
#define F_LSYMS (0x0008)
#define F_INTERWORK (0x0010)
#define F_INTERWORK_SET (0x0020)
#define F_APCS_FLOAT (0x0040)
#undef F_AR16WR
#define F_PIC (0x0080)
#define F_AR32WR (0x0100)
#define F_APCS_26 (0x0400)
#define F_APCS_SET (0x0800)
#define F_SOFT_FLOAT (0x2000)
#define F_VFP_FLOAT (0x4000)
/* Bits stored in flags field of the internal_f structure */
#define F_INTERWORK (0x0010)
#define F_APCS_FLOAT (0x0040)
#define F_PIC (0x0080)
#define F_APCS26 (0x1000)
#define F_ARM_ARCHITECTURE_MASK (0x4000+0x0800+0x0400)
#define F_ARM_2 (0x0400)
#define F_ARM_2a (0x0800)
#define F_ARM_3 (0x0c00)
#define F_ARM_3M (0x4000)
#define F_ARM_4 (0x4400)
#define F_ARM_4T (0x4800)
#define F_ARM_5 (0x4c00)
/*
ARMMAGIC ought to encoded the procesor type,
but it is too late to change it now, instead
the flags field of the internal_f structure
is used as shown above.
XXX - NC 5/6/97. */
#define ARMMAGIC 0xa00 /* I just made this up */
#define ARMBADMAG(x) (((x).f_magic != ARMMAGIC))
#define ARMPEMAGIC 0x1c0
#define THUMBPEMAGIC 0x1c2
#define ARMV7PEMAGIC 0x1c4
#undef ARMBADMAG
#define ARMBADMAG(x) (((x).f_magic != ARMMAGIC) && ((x).f_magic != ARMPEMAGIC) && ((x).f_magic != THUMBPEMAGIC) && ((x).f_magic != ARMV7PEMAGIC))
#define OMAGIC 0404 /* object files, eg as output */
#define ZMAGIC 0413 /* demand load format, eg normal ld output */
#define STMAGIC 0401 /* target shlib */
#define SHMAGIC 0443 /* host shlib */
/* define some NT default values */
/* #define NT_IMAGE_BASE 0x400000 moved to internal.h */
#define NT_SECTION_ALIGNMENT 0x1000
#define NT_FILE_ALIGNMENT 0x200
#define NT_DEF_RESERVE 0x100000
#define NT_DEF_COMMIT 0x1000
/* We use the .rdata section to hold read only data. */
#define _LIT ".rdata"
/********************** RELOCATION DIRECTIVES **********************/
#ifdef ARM_WINCE
struct external_reloc
{
char r_vaddr[4];
char r_symndx[4];
char r_type[2];
};
#define RELOC struct external_reloc
#define RELSZ 10
#else
struct external_reloc
{
char r_vaddr[4];
char r_symndx[4];
char r_type[2];
char r_offset[4];
};
#define RELOC struct external_reloc
#define RELSZ 14
#endif
#define ARM_NOTE_SECTION ".note"
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